feat(all): add jsonschema and typing-extensions as deps

`jsonschema` is now included as a dependency to help validate Slurm
data models as they're exchanged between classes and read in.
`typing-extensions` is added because the `Self` type annotation
is not available within Python 3.10 add is still a support version
of Python for security maintenance and Jammy Jellyfish.

Signed-off-by: Jason C. Nucciarone <[email protected]>